timedelayestLMS_1

说明：  利用matlab实现移位 卷积 相加 等等(Using matlab convolution sum, and so achieve the shift)

低通IIR数字滤波器设计，用数字滤波器的单位脉冲响应序列h(n)模仿模拟滤波器的冲激响应ha(t),令 h(n)=ha(nT)，其中T为采样间隔。将模拟滤波器转换成数字滤波器的实质是，用一种从s平面到z平面的映射函数将Ha(s)转换成H(z)。数字滤波器的频率响应模仿模拟滤波器的频响，s平面的虚轴映射z平面的单位圆，相应的频率之间成线性关系。(Low-pass IIR digital filter design)

本程序模拟了一个2DPSK发送和接受的完整过程，差分编码采用模2加的方式得到，本次实验采用的是相移键控的方法得到发送信号，2DPSK信号最常用的解调方法有两种，本次实验采用的是极性比较法，先通过2PSK相干解调器，再经过码（反）变换器得到基带信号。 (This program simulates a 2DPSK sending and receiving complete process, differential coding is completed by modulo-2 addition； the experiment using the phase shift keying method to send signals.this experiment is the polarity comparison method,firstly go through the 2PSK coherent demodulator and then pass through code (trans) converter to obtain a baseband signal.)

este es el ejercicio 3 de ssd3 de icarnegie

Contemporary communication system with matlab

matlab demo for image compression by wavelet transform

本程序用于完成BPSK、QPSK、8PSK的调制仿真。并可任意扩展到MPSK和MQAM。程序分成三个部分：phase.m对基带码元序列进行脉冲成型，可选矩形脉冲，升余弦脉冲和平方根升余弦脉冲； model.m 为主程序，完成各种信号的基带星座图映射、脉冲成型和调制； command.m给出一个简单的频谱显示测试。(This procedure for the completion of BPSK, QPSK, 8PSK modulation simulation. Arbitrary and may be extended to MPSK and MQAM. Program is divided into three parts: phase.m symbol of the baseband shaping pulse sequences, optional rectangular pulse, the square root raised cosine pulse and raised cosine pulse model.m-based procedures, completed a variety of base-band signal constellation mapping , pulse shaping and modulation command.m given spectrum shows a simple test.)

说明：  利用传输矩阵法计算光纤啁啾brag光纤光栅滤波器的温度滤波特性(The use of transfer matrix method to calculate fiber chirped fiber Bragg grating filter brag temperature filtering properties)

matlab COM组件和MFC的混合编程(matlab COM component and MFC programming mix)

encoder crossover mutation